期刊
ADVANCED ENGINEERING MATERIALS
卷 22, 期 10, 页码 -出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adem.201901333
关键词
defect structures; ferritic; martensitic steel; nanostructured materials; radiation resistance
资金
- EraNet.RUS program through the satellite grants by Deutscher Zentrum fur Luft und Raumfahrt [01DJ16001]
- Karlsruhe Nano Micro Facility, a Helmholtz research infrastructure at Karlsruhe Institute of Technology
- Nanodes grant for the French team [163472]
- RFBR [16-53-76020]
- Region Haute-Normandie
- Metropole Rouen Normandie
- CNRS via LABEX EMC3
- French National Research Agency via Investissements d'avenir program [ANR-11-EQPX-0020]
- Saint Petersburg State University [26130576]
Herein, a study on radiation-induced defect structures in a reactor Fe-14Cr-1W (wt%) steel with grain sizes of 5 mu m and 110 nm is presented. Self-ion irradiation of the steel in both states is conducted with a damage dose of 10 dpa. Microstructure characterization shows that the density of intragranular radiation-induced dislocations is significantly lower in case of the nanostructured material. From the results obtained, it follows that microstructure refinement to a grain size of about 100 nm can be effectively used to approach a problem of higher defect production rate in Fe-Cr steels driven by irradiation and to produce alloys with significantly enhanced mechanical performance as well as radiation tolerance.
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